•Integer keys are stored using the native signed integer type. AutoHotkey 32-bit supports integer keys in the range -2147483648 to 2147483647. AutoHotkey supports 64-bit integers, but only AutoHotkey 64-bit supports the full range as keys in an object.

•Integer keys are stored using the native signed integer type where possible. Integers which are less than -2147483648 or greater than 2147483647 are stored as strings on AutoHotkey 32-bit but as integers on AutoHotkey 64-bit. (By contrast, 64-bit integers can be stored as values on either version.)